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Plz solve this correctly . I only want the answer of Sandclock.​

Answer»

An hourglass (or sandglass, sand timer, sand clock or egg timer) is a device used to MEASURE the passage of time. It COMPRISES two glass bulbs connected VERTICALLY by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper BULB to the LOWER one.this may help you



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